Orbital Focus - International Spaceflight Facts and Figures
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Orbits


Tyneside, UK
2022 Aug 16
Tuesday, Day 228

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Primary source of unclassified orbital elements

Orbital elements based on amateur observations
Sun-synchronous Satellites - Meteorology by LTDN

This a list of satellites in sun-synchronous orbit shown in the order they lie around the Earth. Names are not necessarily those by which they are known in the NORAD catalogue used by SpaceTrack.

It is a snapshot and is updated daily. The measure that results in an entry in this table is that the drift rate of LTDN (Local Time at the Descending Node) is no more than twenty four minutes each year. Some satellites may have higher drift rates but they may still be acceptable to their owners/operators. They do not appear here. On the converse, although a satellite is in a sun-synchronous orbit, it is not necessarily active.

Cubesats less than 6U in size are excluded from the list because the vast majority reached space by hitch hiking and their final orbit was not important. Listing them would create an unnecessarily long page.

The menu on the left leads to some, hopefully useful, sub-lists of the satellites on this page.


LTDN Satellite Cat
no
Desig- nation Orbit
Epoch
Orbit
00:21ESSA 220911966-016A2022 Aug 151355 x 1414 km, 113.4 min, 101°.2
01:25NOAA 20 (JPSS 1)430132017-073A2022 Aug 15826 x 827 km, 101.4 min, 98°.7
01:51Fengyun 3D430102017-072A2022 Aug 15826 x 830 km, 101.5 min, 98°.8
01:52NOAA 17274532002-032A2022 Aug 15799 x 817 km, 101.0 min, 98°.7
02:25ESSA 836151968-114A2022 Aug 151414 x 1463 km, 114.6 min, 101°.5
02:55Meteor M2-2443872019-038A2022 Aug 15811 x 815 km, 101.1 min, 98°.7
03:24NOAA 5 (ITOS H)90571976-077A2022 Aug 151508 x 1524 km, 116.3 min, 102°.1
03:28Meteor M-1358652009-049A2022 Aug 15815 x 820 km, 101.2 min, 98°.5
04:06USA 210 (DMSP 5D-3 F-18)359512009-057A2022 Aug 15840 x 854 km, 101.9 min, 98°.7
04:34NOAA 10169691986-073A2022 Aug 15788 x 807 km, 100.8 min, 98°.6
04:55NOAA 8139231983-022A2022 Aug 15784 x 807 km, 100.8 min, 98°.7
04:59Fengyun 1B207881990-081A2022 Aug 15873 x 895 km, 102.7 min, 98°.8
05:27NOAA 12212631991-032A2022 Aug 15795 x 815 km, 101.0 min, 98°.5
05:38Fengyun 3E490082021-062A2022 Aug 15825 x 828 km, 101.4 min, 98°.7
05:55USA 249 (DMSP 5D-3 F-19)396302014-015A2022 Aug 15839 x 852 km, 101.8 min, 98°.7
05:56USA 109 (DMSP 5D-2 F-13)235331995-015A2022 Aug 15834 x 844 km, 101.7 min, 98°.8
06:30USA 191 (DMSP 5D-3 F-17)295222006-050A2022 Aug 15837 x 853 km, 101.8 min, 98°.8
07:22USA 73 (DMSP 5D-2 F-11)217981991-082A2022 Aug 15827 x 845 km, 101.6 min, 98°.8
07:29NOAA 15253381998-030A2022 Aug 15796 x 813 km, 101.0 min, 98°.6
08:56USA 106 (DMSP 5D-2 S-12)232331994-057A2022 Aug 15832 x 847 km, 101.7 min, 98°.9
09:03TIROS-N110601978-096A2022 Aug 15824 x 838 km, 101.5 min, 98°.6
09:29MetOp-B387712012-049A2022 Aug 15820 x 821 km, 101.3 min, 98°.7
09:30MetOp-C436892018-087A2022 Aug 15819 x 822 km, 101.3 min, 98°.7
09:43NOAA 1 (ITOS A)47931970-106A2022 Aug 151423 x 1472 km, 114.8 min, 101°.6
10:16NOAA 18286542005-018A2022 Aug 15839 x 861 km, 101.9 min, 98°.9
13:19TIROS 1014301965-051A2022 Aug 15717 x 797 km, 100.0 min, 98°.4
17:54DMSP 5D-2 F-6 (Defense Meteorological Satellite Program)137361982-118A2022 Aug 15787 x 800 km, 100.7 min, 98°.6
17:58USA 26 (DMSP 5D-2 F-8)181231987-053A2022 Aug 15821 x 838 km, 101.5 min, 98°.7
18:34AMS 3 (DMSP 5D-1 F-3)108201978-042A2022 Aug 15767 x 780 km, 100.3 min, 98°.5
19:04DMSP 5C F-2 (Defense Meteorological Satellite Program)78161975-043A2022 Aug 15775 x 849 km, 101.1 min, 98°.7
19:12DMSP 5C F-1 (Defense Meteorological Satellite Program)74111974-063A2022 Aug 15768 x 828 km, 100.8 min, 98°.6
20:06DMSP 5A F-1 (Defense Meteorological Satellite Program)32661968-042A2022 Aug 15803 x 879 km, 101.7 min, 98°.7
20:39DMSP 5A F-3 (Defense Meteorological Satellite Program)40471969-062A2022 Aug 15763 x 828 km, 100.8 min, 98°.6
20:44DMSP 4A F-9 (Defense Meteorological Satellite Program)29201967-080A2022 Aug 15815 x 871 km, 101.8 min, 98°.8
23:02Nimbus 3 (Nimbus B2)38901969-037A2022 Aug 151070 x 1130 km, 107.3 min, 99°.9
23:15Nimbus 6 (Nimbus F)79241975-052A2022 Aug 151100 x 1113 km, 107.4 min, 100°.1
23:21Nimbus 5 (Nimbus E)63051972-097A2022 Aug 151088 x 1100 km, 107.1 min, 99°.9
23:53Nimbus 4 (Nimbus D)43621970-025A2022 Aug 151086 x 1098 km, 107.1 min, 100°.0

For the satellites that do not have formal published elements, thanks go to the radio and visual amateur satellite trackers for their observing, and particularly to Mike McCants for archiving the derived orbits.

Updated: 2022 Aug 16, 05:48 UTC

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